Somekh, E. M. (1965). Practical physics. Chatto & Windus.
Cita Chicago (17th ed.)Somekh, E. M. Practical Physics. London: Chatto & Windus, 1965.
Cita MLA (9th ed.)Somekh, E. M. Practical Physics. Chatto & Windus, 1965.
Atenció: Aquestes cites poden no estar 100% correctes.